/**
 * Binary and Unary Expressions
 *
 * Handles arithmetic, comparison, and logical operators.
 * Provides evaluation for binary operations, unary operations, and grouped expressions.
 *
 * Interface requirements (from spec):
 * - evaluateBinaryExpr(node) -> Promise<RillValue>
 * - evaluateUnaryExpr(node) -> Promise<RillValue>
 * - evaluateGroupedExpr(node) -> Promise<RillValue>
 * - resolveExpressionValue(value) -> Promise<RillValue>
 *
 * Error Handling:
 * - Type mismatches in operators throw RuntimeError(RUNTIME_TYPE_ERROR)
 * - Nested expression evaluation errors are propagated
 * - Closure auto-invoke errors are propagated
 *
 * @internal
 */
import type { BinaryExprNode, UnaryExprNode, GroupedExprNode } from '../../../../types.js';
import type { RillValue } from '../../types/structures.js';
import type { EvalState } from '../state.js';
/**
 * Evaluate binary expression: left op right.
 * Handles arithmetic, comparison, and logical operators.
 * Auto-invokes closures when $ is bound.
 */
export declare function evaluateBinaryExpr(s: EvalState, node: BinaryExprNode): Promise<RillValue>;
/**
 * Evaluate unary expression: -operand or !operand.
 * Auto-invokes closures when $ is bound.
 */
export declare function evaluateUnaryExpr(s: EvalState, node: UnaryExprNode): Promise<RillValue>;
/**
 * Evaluate grouped expression: (expression).
 * Provides scoping - captures inside are local and not visible outside.
 */
export declare function evaluateGroupedExpr(s: EvalState, node: GroupedExprNode): Promise<RillValue>;